When Katarina Dubrova's first knocked-up XXX scene (Pregnant Sex) was shown at SCORELAND, a member wrote, "Thanks to SCORE for this! A stunning busty model for a superb pregnant sex scene. We need more, please!" Katarina returns for more in "Knocked-up Humping." This time, Katarina is wearing a skintight, low-cut cocktail dress that clings to her big belly bump and bigger boobs like cellophane. She primps by the mirror as she touches-up her lipstick.